Great Britain won their first gold medal on day two of the 2013 Track Cycling World Championships as Ireland, Hong Kong, Australia and Germany also triumphed.

Olympic champions Laura Trott and Dani King celebrated a third successive women's team pursuit title as Elinor Barker savoured her first rainbow jersey in Minsk.

A fifth World Championships title in six years means Trott and King are unbeaten in the three-woman, three-lap event since February 2011, when representing a junior British team at the Manchester Track World Cup.

They have won three world titles in three attempts and London 2012 Olympic gold in that time.

King, Trott and Barker pose for a celebratory picture

Barker, the 18-year-old school girl from Cardiff, slotted in seamlessly to the space vacated by 2012 world and Olympic champion Joanna Rowsell.

After qualifying almost two seconds clear of Australia, Britain finished the final in three minutes 18.140 seconds, with Annette Edmondson, Ashlee Ankudinoff and Melissa Hoskins 1.773secs adrift.

Canada were third.

The event was added to the World Championships programme in 2008 and Britain have won every time, apart from in Copenhagen in 2010.